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(No Model.)

C. GOEBEL.

4 GONDUIT FOR ELECTRIC WIRES.

No. 297,927. Paten-ted Apr. 29; 1884.'

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`CHRISTIAN H. GOEBEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE GOEBEL SECTIONAL ELECTRIC UNDERGROUND AND PNEUMATIC DE- LIVERY COMPANY, OF NEV JERSEY. 1

'CONDUIT' FOR ELECTRIC WIRES.

SPECIFICATION forming part of Letters Patent No. 297,927, dated April 29, 1884.

Application filed September 21, 1883. (No model.)

To 1r/ZZ whom t may concern:

Be it known that I, CHRrsrLiN H. Genest, a citizen of the United States, residing in the city and county of Philadelphia, State of Pen n- 5 sylvania, have invented a new and useful Improvenient in Conduits for Electric Vires, which improvement is fully set forth in the following specification and accompanying drawings, in whichl Io Figure l is a side elevation of a conduit for electric wires embodying my invention. Fig. 2 is a longitudinal section thereof. Figs. 3 and 4 are longitudinal sections of modifications thereof. Fig. .5 is a transverse section in line I5 x m, Fig. 2.

Similar letters of reference indicate corresponding parts in the several figures.

My invention consists of a conduit for electric wires provided with a coupling whose 2o joints are close and tight, so that water, &c., is prevented from entering the same, the wires are thoroughly insulated in the couplings, and the tubing of the conduit is securelyT connected.

Referring to the drawings, A A represent 2 5 pieces of wire for telegraph, telephone, or other electricpurp os'es, the ends thereof being spliced or otherwise united, as at c.

B represents tubing or tubes of metal or other suitable material, within which the wires 3o are fitted, the latter being suitably covered with rubber or other material, as at C.

D represents a split collar or packing of rubber or other insulating material of acompressible nature encircling the spliced ends of' the 3 5 wires; and E represents a sectional or divided collar formed of segmental plates, which are placed around the periphery of said collar D,

the outer faces or ,backs of said plates being tapering at the ends thereof.

F represents a coupling -sleeve, vwhich in Figs. l and 2 is formed of sections threaded so as to be screwed together, and having their inner faces tapering, in order to engage with the tapering backs of the segmental plates E. The 45 ends of the tubes B adjacent to the splicings of the wires are headed or shouldered, as at c, and the ends of the sleeves F are formed with flanges b, which are adapted to engage with the shoulders ofthe tubes. The en'ds of the coverings C of the wires adjacent to the splic- 5o ings thereof are within the sleeve F and abut against the collar D, and said ends are flanged, headed, or swelled or enlarged by compression, as at c, so as to be of greater diameter than that of the tubes, for preventing slipping 55 of the covering C and causing the same to abut tightly against the collar D when the tubes B are coupled. It will be seen that when the ends of the wires are spliced, said ends being outside of the coverings C, the collar D is fitted over the spliced ends of the wires and the segmental plates E applied around the collar D. The opposite sections of the sleeve F are fitted over the two lengths of pipe and screwed together, th'us coupling said lengths and clamp 65 ing the segmental plates E, whereby the co1- lar or packing D is compressed on the connected ends of the wire, and the coverings C of wires and the collar D are forced together end to end, the joints of' the' coupling thus being close and tight, so that water, &c., is prevented from reaching the splicings, the wires are thoroughly insulated in the coupling, and the tubes are securely connected. In Fig. 3 the backs of the segmental plates are threaded and 7 5 the sleeves F screwed thereon at opposite ends, thus acting as climbing nuts, forcing said pla-tes against the collar D and compressing the same. In Fig'. et the tapering backs of the plates are unthreaded, and the inner periphery of the sleeves F are also unthreaded, so

that the sleeves maybe driven toward each other on the collar, thus compressing the latter, the coupling produced in either figure being close, tight, and secure. S5

Having thus described my invention, what I claim as'new, and desire to secure by Letters Patent, is-

l. In a conduit for electric Wires, a split or divided collar of compressible material encircling the connected ends of the wires, segmental plates of rigid material with tapering backs surrounding said collar, and a clamping-sleeve with tapering inner faces fitted over said segmental plates, ing substantially forth.

2. In a conduit for electric Wires7 a eoupling consisting of a split er divided collar of eompressble material encircling J511e Connected ends of Wires, segmental plates of rigid material surrounding said cellar, a elampingcombined and operatas and for the purpose set sleeve tted over said segmental plates, and tubing inelosing the wires formed at the ends 1o Within the coupling with shoulders, substantially as and for the purpose set forth CHRISTIAN H. GOEBEL. wWitnesses JOHN A. WInDnRsHmM, A. l. GRANT. 

